Technically true, but kind of ridiculous. How many people can't get food, but have a computer, electricity, internet connection, a reasonably quiet place to work, deep knowledge of web technology, and enough free time and mental energy to try to build exploits of computer software against an uncertain and distant bug bounty payout? If you're really desperate for food, you should be looking for a salaried position or something more immediate and certain.
More importantly, human history shows that ethics really are important. If you ignore ethics in the name of people starving, you build a society where even more people suffer and starve. If you want to build a society where everybody is safe and healthy, you need to pay attention to ethics now, not "someday".